The spectacular Grand Palace is undoubtedly the most famous landmark in Bangkok. Must visit place if you're visiting Bangkok for the first time. The Grand Palace is open seven days a week from 8.30 am until 4.30 pm.
I stayed at Everyday Bangkok hostel @ Khao San Rd, got into a tuk-tuk and it was 10 mins ride to Grand Palace.
There was a entry fee of 500 baht per person around US $16.5
Dress code- Men must wear long pants, Women must cover legs to just above the knee. Avoid wearing tight-fitting stretch pants.